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You are here: Home / Lessons / Step 2: Assemble the housing that will attach the pH electrode to the Refractometer

Step 2: Assemble the housing that will attach the pH electrode to the Refractometer

Setting up a Rudolph Research Automation System Section 1 : Metrohm pH Electrode Setup Step 2: Assemble the housing that will attach the pH electrode to the Refractometer

Now let’s assemble the housing that will allow us to attach the electrode to the Rudolph refractometer.

Feel free to pause the video here to gather all the parts necessary to complete this section.


For this step, slide each part from the right onto the pH electrode.

Starting with the tan collar and ending with the washer.

When placing the tan color, ensure the recessed side faces down.
This is important as the O-ring installed next will fit into this space.


Place a small amount of lubricant on the O-ring before placing on the electrode.


The O ring is followed by a tan collar made of peak material.


Place a small amount of lubricant on the O-ring before placing on the electrode.

Screw the alignment tool into the bottom of the main mounting body.
Then attach the mounting body to the pH electrode.

Finally use the four hex screws to secure the square collar to the main mounting body.

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Copyright © 2026 Rudolph Research Analytical

  • Home
  • Products
    • Density Meters
      • DENSITY METER – PORTABLE DDM29
      • Density Meter DDM 2909
      • Density Meter DDM 2910
      • Density Meter DDM 2911
      • Density Meter DDM 2911 PLUS
      • Density Meter Sample Loading Options
    • Refractometers
      • REFRACTOMETER – PORTABLE J27
      • J47
      • J57 VT
      • J157 PLUS
      • J257
      • J357
      • J457
      • Contact Lens Refractometers
    • Polarimeters
      • Autopol I
      • Autopol II
      • Autopol III
      • Autopol IV
      • Autopol V
      • Autopol V PLUS
      • Autopol VI
    • Saccharimeters
      • Autopol IZ & IIZ Saccharimeters
      • Saccharimeter Autopol 589
      • Digital Saccharimeter Autopol 880 & 880T
      • Saccharimeter Autopol 880 PLUS & 880T PLUS
      • Saccharimeter Sample Cells
      • Saccharimeter Specifications
    • Automation
      • Autoflex® R817
      • AutoFlex® R827
      • AutoFlex® R837
    • AlcoTest-RI®
      • Distillery Financing
    • VeriLinkRx Hospital Drug Diversion
    • Octapol®
      • Octapol®
      • Octapol® Red
      • Octapol® Black
    • Rudolph Standards Lab
  • Resources
    • Service + Maintenance
    • White Papers
    • Videos
    • Technical Bulletins
    • Definitions
  • Quality – Accreditations
  • Testimonials
  • Rudolph Research – General Info
    • About Us
    • Articles
    • Trade Shows
    • Press Releases
    • Service + Maintenance
    • Customers/Industries
  • Contact Us
    • Distributor Locator
    • Contact Service
    • Part Order/Quote Request
    • Request Information
    • Rudolph Brazil
    • Rudolph Germany
    • Rudolph Japan
    • Rudolph Turkey
    • Careers
    • Open Positions
  • Videos
  • Rudolph Standards Lab
  • Shop
    • Cart
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